Improvement in locks



W. H. GARLOOK.

Look.

No. 218,728. Patented Aug. 19, 1879.

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G Q Z k E e WITNESSES IN ENTOR an/(M12 ATTORNEY a, PETERS,PHOTO-LIIHOGRAPNER, WASHINGTON n c UNITED STATES WILLIAM H. GARLOOK, OFDENrsoN, TExAs.

IMPROVEMENT IN LOCKS.

Specification forming part of Letters Patent No. 218,728, dated August19, 1879; application filed July 2, 1879.

To all whom it may concern:

Be itknown that I, WILLIAM H. GARLooK, of Denison, in the county ofGrayson and State of Texas, have invented a new and valu ableImprovement in Slide-Door Fasteners; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being had to the annexed drawings,making a part of this specification, and to the letters and figures ofreference marked thereon.

Figure 1 of the drawings is a representation of a side view of a car,showing my fastener applied; and Fig. 2 is a vertical transverse sectionof the same.

This invention has relation to improvements in fasteners for slidingdoors particularly adapted to railway-cars.

The nature of the invention consists in the construction and novelarrangement of parts, as hereinafter shown and described.

In the accompanying drawings, the letter A designates the side of a carhaving the opening a, through which access is had to its interior, andwhich is closed by a sliding door, B, in the usual way. This door ishung in any known way.

0 indicates a strong metallic plate bolted or screwed to the side of thecar just below the door, to which is secured by means of a flatheadedbolt, 1), a wedge-key, 0, having cut in its length a slot, 8, parallelto one of the sides of the key, and consequently forming an angle withthe otherthat is, with the side designed to bear against the edge of thesliding door.

The wedge-key is of the general form of a triangle, having its apexrounded off, as shown at c. The slot 8, formedin this Wedge-key, (itbeing premised that the pivot-bolt b is below the lower edge of thedoor,) extends sufiiciently near the rounded extremity c to allow thesaid key to be swung into the position shown in dotted lines, Fig. 1,when the highest point of the rounded part 0 will be below the loweredge of the door, so that the latter will readily slide past it; butwhen this key is thrown up with its small end down, and is forciblydepressed, it jams the door against the stop 19 on the side of the car,against which the door abuts and holds the latter in place, the tendencyof the key being to increase its jamming action asthe car proceeds onits way.

The key is guided when it is forced down by a guide-stud, d, on theplate 0, the said stud being on a line with the edge of the door orslightly inside of the same, and its eflect being to hold the said keyagainst vibration toward said stud, or rather in its direction, theresult of which would be to release the door. Attached to this stud orto plate O,or to any other fixed part of the car side or body, is achain, L, having on its free end a hook, It, designed to be engaged witha staple, t, on the wedge-key, the object of which chain is to preventthe said key from getting out of position casually.

In lieu of the hook I may substitute a hasp, that, being passed over thestaple. 1', will serve in the usual way for the application of a padlockand seal; but the seal-wire may be passed through the staple and a linkof the chain without the employment of a padlock.

What I claim as new, and desire to secure by Letters Patent, is

A fastening for transversely-sliding doors, consisting of thecombination, with the rear edge of the door and the bolt 12, and stud 61below the lower edge of said door, of the slotted endWise-movablerotating wedge-plate 0, adapted when turned in one direction on the boltto engage the door edge and stud, and when turned in the other to swingbelow the lower edge of the door, so that thelatter can pass above itfreely, substantially as specified.

In testimony that I claim the aboy e I have hereunto subscribed my namein the presence of two witnesses.

WILLIAM H. GARLOGK.

Witnesses:

J. H. GARLooK, JAs. R. CHAPMAN.

